So this is similar to what I saw in the past on the mac and when I was fiddling with docker. I’m guessing this file just isn’t included for some reason in the module and on windows it must autoresolve but doesn’t on linux/mac type things. Regardless of the cause, I already have this file on my Mac, so I just scp’d it over to my /home/pi folder and finally moved it to the location it was looking for it with mv *.dll /usr/local/share/powershell/Modules/UniversalDashboard/1.5.1/netcoreapp2.0/

After this, everything worked dandy. It is worth noting that as soon as this starts up, you’ll need to enter your license information immediately. I believe I could copy the license file over and it would work as well, but I have just been activating things when I start them up.